Using Prism (Composite WPF) EventAggregator

submitted by brandewinder 2 days, 16 hours ago

blog.donnfelker.com — Imagine that your "Services" layer needs needs to send off an event that some data has changed. One way to do this would be to bubble the event to the parent layer and then let that layer bubble the event up again. For example, lets say that the Service layer changed the Customer and it wants to let any interested parties know (as it should) through an event. So it sends a "CustomerChanged" event notification. Since the only object who is watching the Service layer is the Model layer, the model layer will grab the event and then re-publish it again (bubbling it up) the object graph). As you can tell, its a royal pain to do this. Imagine the amount of code you have to write. You've to write a ton of plumbing just to bubble the event from the service to the model to the view model to the view, and vice versa. This is where an event aggregator comes in. read more...

add a comment | category: Patterns | Views: 6

How To: REST Services in WCF 3.5 Part 2 - The POST

blog.donnfelker.com — Learn how to utilize the WebInvoke Attribute in WCF 3.5 to implement a RESTful Web service that accepts POST requests. read more...

add a comment | category: Web Services | Views: 13

How To: Implement a simple REST Services in WCF 3.5 Part 1

blog.donnfelker.com — A real life introduction to how to program REST based services with WCF. With full working source download! read more...

add a comment | category: Web Services | Views: 16

My Visual Studio Settings - My Altered Vibrant Ink Settings Setup

blog.donnfelker.com — Custom DARK .NET Settings file with a preview. You will need Consolas for these settings. read more...

add a comment | category: Visual Studio | Views: 16

Resizing a VHD and a Volume

blog.donnfelker.com — Learn how to resize a Virtual PC VHD File so that the C drive has more space. VERY VERY Helpful when you run out of room on that VPC! read more...

add a comment | category: Other | Views: 8

Using iTextSharp To Watermark/Write Text to Existing PDF's

blog.donnfelker.com — This tutorial shows you how to write text to an existing PDF by using iTextSharp. Learn how to write text on top of the document, below the document and at various locations through the code and full solution provided. read more...

add a comment | category: C# | Views: 324

Enterprise Service Bus Messaging Using nServiceBus

weblogs.asp.net — I have been working lately with a big group of fellow developers here in SilverKey on the architecture and design of a relatively big project that required much services and messaging work. We thought that we should implement our public services the REST way using WCF for .NET 3.5, with so many customizations, and that we'll use a library called nServiceBus for internal messaging. nServiceBus is a framework for handling publisher/subscriber (pub/sub) model of messaging. It provides reliable messaging via the Enterprise Service Bus (ESB) pattern, and uses MSMQ as the physical bus. read more...

add a comment | category: Architecture | Views: 12

Streaming Large Objects with ADO.NET, Properly

submitted by jstangroome 1 year, 3 months ago

codeassassin.com — A quick reference for dealing with BLOBs in SQL without creating huge arrays in memory. read more...

add a comment | category: Database | Views: 1